JPH0731429Y2 - Automotive audio equipment - Google Patents

Description

[Detailed Description of the Invention] <Industrial application field> The present invention relates to an on-vehicle audio device, and particularly, by switching a high frequency signal from an antenna and another device, a radio broadcast and an audio signal of another device are the same. The present invention relates to a vehicle-mounted audio device that can be received by a radio receiver.

<Prior art> There is an on-vehicle audio device that consists of a radio receiver, amplifier, speaker, etc., but if you want to add an external source such as a CD to the on-vehicle audio device, a radio that does not have an audio input terminal Since it was impossible to connect to the radio, it was necessary to replace the radio with one with an audio input terminal.

Therefore, the output of the external source is RF
A method has been proposed in which a radio receiver receives the signal by modulating it.

<Problems to be Solved by the Invention> In many cases, a radio receiver in an on-vehicle audio device uses a tuner with a preset memory that can store the reception frequency in the preset memory in advance. Therefore, if the oscillation frequency of the RF modulation output of such an audio device is stored in the preset memory, the user can store the oscillation frequency of the RF modulation output after operating the play key of the recording medium playing device (for example, CD player). You can enjoy comfortable music just by pressing the preset memory key of the radio receiver.

However, as described above, two operations are required for the user to enjoy comfortable music. This is usually because the in-vehicle audio device is often used while the vehicle is running, so the above operation is very troublesome.
It is also very dangerous from a safety point of view.

<Means for Solving the Problem> In the present invention, the above-mentioned problem is provided with a switch for enabling the starter of the recording medium playing device and the preset memory call of the tuner with the preset memory to be simultaneously executed in the tuner with the preset memory. Can be achieved.

<Operation> According to the present invention, a tuner with a preset memory, a recording medium playing device, a controller for controlling the recording medium playing device, and the output of the recording medium playing device are modulated.
In an in-vehicle audio device having an RF moderator and a switching means for selectively switching between the output of the RF moderator and the input from the antenna, and inputting to the tuner with a preset memory, the tuner with a preset memory is provided. Since the switch that enables the play start of the recording medium playing device and the preset memory call to be executed at the same time is provided, the operability of the vehicle-mounted audio device can be improved.

<Example> An in-vehicle audio device according to the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of an in-vehicle audio device according to the present invention. In the figure, 1 is an antenna, 2 is a high-frequency signal from the antenna and another device, and by switching the contacts A and B, the radio signal and the audio signal of the other device can be received and reproduced by the tuner 3 with the preset memory. Switching means 3, a tuner with a preset memory for receiving a radio broadcast, 4 a CD chainer for selecting a predetermined disk from a magazine containing a plurality of disks and reproducing an audio signal, 5 an antenna switching With means 2
A controller consisting of various operation keys for controlling the CD chain 4, 6 is an RF modulator for frequency-modulating the audio signal output of the CD chain 4, and outputting it as an RF signal,
Reference numeral 7 is a switch for simultaneously executing the play start of the CD chain 4 and the preset memory call of the tuner 3 with the preset memory. S1 is a signal line for transmitting the play start command of the CD chain 4, which is connected to the controller 5. ing. Reference numeral 8 is an amplifier for amplifying an audio signal, and 9 is a speaker.

FIG. 2 shows a perspective view of the tuner 3 with the preset memory. Note that, in the figure, the same reference numerals are attached to those corresponding to FIG. Here, since the switch 7 is an ultra-thin contact switch and is configured to be smaller than the preset memory key of the tuner, even if it is attached to the preset memory key, the operation of the key of the tuner will not be a nuisance. Absent. Furthermore, the key 7 is attached by a sticking method,
Since the preset memory key can be attached and detached more easily than the preset memory key, the preset memory key can be attached to any place according to the user's preference.

Next, the operation of the electronic device according to the present invention will be described. Now
It is assumed that the antenna switching means 2 is switched to the contact A, and the tuner 3 with preset memory is, for example, 86.1 MHz.
It is assumed that the broadcast of is received. If it is desired to set the CD chain player 4 in the play start state, the play start command is transmitted from the signal line S1 via the controller 5 by pressing the key 7 attached to the preset memory key of the tuner 3 with preset memory. Since it is sent to the CD engine 4, the CD engine 4 enters the playing state and sends an audio signal to the RF modulator 6. At the same time, the controller 5 controls the antenna switching means 2 to switch the contact from A to B, so that the voice signal input to the RF modulator 6 is transmitted to the antenna switching means 2 at a predetermined frequency, for example, 83.6 MHz. Therefore, if the memory of the preset memory key to which the switch 7 is attached stores the oscillation frequency of the above RF modulator, 83.6MHz, if the key 7 is pressed, the preset key below that key 7 is also attached. , The reception frequency of the tuner with built-in memory 3 also changes to 86.3MHz, and by pressing the key 7 once, the user can
You can enjoy comfortable playing.

Since the signal line 7 is wired, it may be a nuisance to the operation. Therefore, the switch 7 may have a built-in microminiature transmitter to be a wireless system.

<Advantages of the Invention> According to the present invention, a tuner with a preset memory, a recording medium playing device, a controller for controlling the recording medium playing device, an RF modulator for modulating the output of the recording medium playing device, and the RF An in-vehicle audio device having switching means for selectively switching between an output of a moderator and an input from an antenna and inputting to the tuner with a preset memory, and the tuner with a preset memory for the recording medium playing device. Since the switch for enabling the play start and the preset memory call to be executed at the same time is provided, it is possible to improve the operability of the on-vehicle audio equipment and free the user from the troublesome operation.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an in-vehicle audio device according to the present invention, and FIG. 2 is a perspective view of a tuner with a preset memory which constitutes the in-vehicle audio device according to the present invention. 2 ... Antenna switching means, 3 ... tuner with preset memory, 4 ... CD chain, 5 ... controller,
6 ... RF moderator, 7 ... Switch, S1 ... Signal line.

Claims (1)

[Scope of utility model registration request] 1. A tuner with a preset memory, a recording medium playing device, a controller for controlling the recording medium playing device, and an RF for modulating the output of the recording medium playing device.
A moderator, switching means for selectively switching between the output of the RF moderator and the input from the antenna and inputting to the tuner with preset memory, and the play start of the recording medium playing device in the tuner with preset memory. An on-vehicle audio equipment provided with a switch capable of simultaneously executing preset memory call of the tuner with preset memory.